Hi Hans,
That should be new enough, I see no important differences between 3.4
and 3.14 in this respect. But really, 3.4?
We are moving to 3.10 shortly.
Question: if you use MEMORY_MMAP instead of USERPTR, does that work?
Unfortunately, this activity is pending (need to get it pushed in
Hi,
I have a V4L2 capture driver accepting a malloc'ed buffer.
The driver is using vb2_vmalloc_memops
(../drivers/media/v4l2-core/videobuf2-vmalloc.c) for user-space to kvaddr
translation.
Randomly, corrupted data is received by user-app.
So, the question is regarding the handling of
Hi Divneil,
On Mon, Apr 7, 2014 at 6:56 PM, Divneil Wadhawan divn...@outlook.com wrote:
Hi,
I have a V4L2 capture driver accepting a malloc'ed buffer.
The driver is using vb2_vmalloc_memops
(../drivers/media/v4l2-core/videobuf2-vmalloc.c) for user-space to kvaddr
translation.
Randomly,
Hi Pawel,
Thanks for the quick response.
Is it possible that your userspace is not always queuing the same
userptr memory areas with the same v4l2_buffer index values?
No, userptr is always consistent with the index.
In fact, when we dump the captured buffer (Transport Stream) in this case,
On 04/07/2014 12:49 PM, Divneil Wadhawan wrote:
Hi Pawel,
Thanks for the quick response.
Is it possible that your userspace is not always queuing the same
userptr memory areas with the same v4l2_buffer index values?
No, userptr is always consistent with the index.
In fact, when we dump
Hi Hans,
Two more questions:
Which kernel version are you using?
3.4.58
Which capture driver are you using?
It's a TSMUX driver, written locally.
Regards,
Divneil --
To unsubscribe from this list: send the line unsubscribe linux-media in
the body of
Which capture driver are you using?
It's a TSMUX driver, written locally.
In complete, it's a Multi-INPUT, single output (MUXER) driver, but, currently,
it's the capture side fault here.
Regards,
Divneil --
To unsubscribe from this list: send the line
On 04/07/2014 01:20 PM, Divneil Wadhawan wrote:
Hi Hans,
Two more questions:
Which kernel version are you using?
3.4.58
That should be new enough, I see no important differences between 3.4
and 3.14 in this respect. But really, 3.4? That's over two years old!
If you have control over what
